# 05.09.2025
[2749. Minimum Operations to Make the Integer Zero](https://leetcode.com/problems/minimum-operations-to-make-the-integer-zero/description/) medium


Min ops to subtract n2+2^(0..60) from n1 and make n1=0 #medium

# 09.09.2025
[2327. Number of People Aware of a Secret](https://leetcode.com/problems/number-of-people-aware-of-a-secret/description) medium


People knowing a secret at day n, keeping delay then spread and forget #medium #simulation

# 10.09.2025
[1733. Minimum Number of People to Teach](https://leetcode.com/problems/minimum-number-of-people-to-teach/description/) medium

Min friends to teach common language to communicate in graph #medium

# 11.09.2025
[2785. Sort Vowels in a String](https://leetcode.com/problems/sort-vowels-in-a-string/description) medium


Sort vowels #medium

# 12.09.2025
[3227. Vowels Game in a String](https://leetcode.com/problems/vowels-game-in-a-string/description) medium


Can Alice win Bob both removeing odd-even vowel count substring optimally #medium

# 14.09.2025
[966. Vowel Spellchecker](https://leetcode.com/problems/vowel-spellchecker/description) medium

Spellcheck with priority: original, case, vowels #medium #regex

# 17.09.2025
[2353. Design a Food Rating System](https://leetcode.com/problems/design-a-food-rating-system/description/) medium


Food rating system: change rating, peek highest by type #medium #ds

# 18.09.2025
[3408. Design Task Manager](https://leetcode.com/problems/design-task-manager/description) medium


Design Scheduler: add, edit, remove, execute by priority #medium #ds

# 19.09.2025
[3484. Design Spreadsheet](https://leetcode.com/problems/design-spreadsheet/description/) medium

Design Spreadsheet: setCell, resetCell, getValue(a+b) #medium #ds

# 20.09.2025
[3508. Implement Router](https://leetcode.com/problems/implement-router/description/) medium

Design Router: addPacket, forwardPacket, getCount(dst, ts start..end) #medium #ds

# 23.09.2025
[165. Compare Version Numbers](https://leetcode.com/problems/compare-version-numbers/description) medium

Compare versions x.x.x.x #medium

# 24.09.2025
[166. Fraction to Recurring Decimal](https://leetcode.com/problems/fraction-to-recurring-decimal/description) medium


Calc a/b to string x.y(z) #medium #math

# 25.09.2025
[120. Triangle](https://leetcode.com/problems/triangle/description) medium

Min path sum in triangle #medium #dp

# 26.09.2025
[611. Valid Triangle Number](https://leetcode.com/problems/valid-triangle-number/description) medium


Count triangles can be made from numbers #medium #binary_search #two_sum

# 29.09.2025
[1039. Minimum Score Triangulation of Polygon](https://leetcode.com/problems/minimum-score-triangulation-of-polygon/description) medium


Min sum of triangle product for every possible triangulation #medium #dp

# 30.09.2025
[2221. Find Triangular Sum of an Array](https://leetcode.com/problems/find-triangular-sum-of-an-array/description) medium


Triangle sum % 10 #medium #simulation

# 02.10.2025
[3100. Water Bottles II](https://leetcode.com/problems/water-bottles-ii/description) medium


Total drinks with growing exchange rate empty for full #medium #simulation

# 04.10.2025
[11. Container With Most Water](https://leetcode.com/problems/container-with-most-water/description) medium


Max water container from two heights #medium #two-pointers

# 06.10.2025
[417. Pacific Atlantic Water Flow](https://leetcode.com/problems/pacific-atlantic-water-flow/description) medium

Cells travel to TL&BR in decrease order #medium #dfs

# 07.10.2025
[1488. Avoid Flood in The City](https://leetcode.com/problems/avoid-flood-in-the-city/description/) medium

Replace zeros with numbers to avoid duplicates #medium #binary_search #greedy